helmet

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A personal protective device of hardened plastic (or other materials) worn on the head to decrease the severity of injuries in the event of an accident

helmet

Public health A personal protective device of hardened plastic worn on the head to ↓ severity of injuries in the event of an accident. See Pro cap helmet.
References in periodicals archive ?
These designs can be delivered as an additional kit to in-service helmets, or can be incorporated into the helmet shell architecture, depending on client needs.
Aside from the helmet shell, live giant clams (Tridacna gigas) are also abundant in Buntod's reefs, which are teeming with tropical marine life and clusters of soft and hard corals.
Putting unauthorized stickers or self-adhesive items on the HGU-56/P shell or visor assembly will limit the ALSE tech's ability to inspect the helmet shell for cracks or soft spots.
The Crash Zone is double-walled and the helmet shell and components are made of a blend of acrylonitrile-butadiene styrene and polycarbonate, increasing the helmet life from the average 4 years to 6 years, which is 50 percent better than that of traditional helmets.
The connector assembly on the right side of the helmet shell is covered by a hinged dust cover.
date of manufacture that any helmet shell will be replaced free of charge if it is damaged beyond
The families of the community are those who through their human capital make possible the recovery of 40 hectares of mangrove reforestation 3 kilometers of riparian forest on the banks of river Jalponga, establishment of nurseries and donkey helmet shell, processing Crafts (fishing nets), implementation of management plans for coastal species, 5-plots Creole seed corn, creating nursery Ajalin and strengthening of infrastructure for ecotourism (1 boat.
Remember, NO stickers or other self-adhesive items are authorized on the helmet shell or the visor assembly.
Take out the suspension pads from the helmet shell. Take off the helmet cover.
The mounting screw, NSN 8470-01531-4268, and the post, NSN 8470-01531-4284, fasten the attachment tab, NSN 8470-01-531-3897, to the helmet shell. Each NSN brings a box of 50.
Head/Shell Sizing Chart Head Head Head Length Width Circumference Medium Up to 7 3/4 inches Up to Up to 22 1/2 Helmet Shell (198 mm) 6 1/2 inches inches (573 mm) (162 mm) Large From 7 3/4 inches From 22 1/2 inches Helmet Shell (198 mm) (573 mm) up to up to 8 1/4 inches 23 1/2 inches (210 mm) (597 mm) Extra-Large From 8 1/4 inches 6 1/2 inches 23 1/2 inches Helmet Shell (210mm) (162 mm) (597 mm) and over and over and over